Gas heater



A. H. WOLFF,

GAS HEATER.

APPLICATION man NOV-7,1921.

Patented Mar. 21, 1922.

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UNITED STATES PATENT OFFICE.

AARON H. wonnr, on NEW YORK, N. Y.

GAS HEATER.

Application filed November 7, 1921. Serial 110.513,?85.

fractory heating elements or radiants are positioned in a combustion chamber open at the top and communicating with means forming a flue positioned rearwardly of, and discharging horizontally above, said combustionchamber, so as to securean effective utilization. of the heat radiated from the walls of the combustion chamber and of the heated air rising therefrom, in addition to the heat projected into a room by a reflecting casing extending about and in front of the combustion chamber.

in a heater as described in my aforesaid application, the construction of the burners and the refractory elements above same, the combustion chamber and the said flue-form ing means is such as to secure a substantially complete combustion of the and the utilization of the products of combustion for heating purposes under conditions which will secure a better distribution of same throughout the room to be heated.

In said heater the combustion chamber was positioned centrally and rearwardly of a dish reflector casing having a curved'surface projecting fomvardly of the combustion chamber at all points thereof.

by actual use, I have ascertained that the curved portion of the reflector below the ombustion chamber did not contribute toward the brilliancy of the heater while in use, and that there was some loss in the effectiveness of the reflector owing to the fact that the portions thereof close'to the iiening of the combustion chamber did not have the light from the radiant elements directed thereupon.

The type of burner employed in connection with the radiant elements has a long Specification of Letters Patent.

Patented Mar. 21, 1922;

blue flame, and under some conditions users experlenced difficulty in llghting the gas at said burners by reason of the presence of the fixed shield.

With the above conditions in mind,I have in my present invention, improved certain of the minor characteristics of the invention of'my aforesaidapplication, and in addi tion thereto have so constructed the reflectmg casing that the light rays adjacentthe bottom ofthe combus 'tion chamber, will be caughtand reflected against other portions of the reflecting casing about and above said open1ng,'thus glving to the entire reflecting casing structure at the'front thereof, a high degree of brilliancy irrespective ofthe angle from which the heater is being observed.

In addition to the above characteristics, I pivotally mount the shield in relation to the reflector, so that itmay be readily displaced to permit convenient access to the burners for lightin purposes, while ensuring the desired rigidity of this shield in relation to this reflector'while the heater is in use.

My invention consists primarily in a heater embodying therein a front reflecting casing having an opening therein, a sub stantlally, horizontal, reflecting element within said casing and extending across the opening therein adjacent the bottom thereof, whereby said reflecting element will receive li ht ra s and )ro'ect them a ainst t: c I 6 other portions of the reflecting surface of said caslng, and also piesenta brilliant surface to the observer, means forming a coinbustion chamber at said opening adapted. to receive refractory heat ng-elements, a

heating unit in'said combustion chamber,

and means forming a flue rearwardly of said combustion chamber, theopposite ends of which communicate respectively with at-' mosphere adjacent the lower part of and above said combustion chamber, whereby convection movement of air is set up about saidcombustion chamber, and air so heated is delivered. to a room; and in such other novel features of construction and combination of parts as are hereinafter set forth anddescribed, and more particularly point ed out in the claims hereto appended. Referring to the drawings,

Fig. l is a front elevation of a heater embodying my invention; and

is a vertical section' therei'zhrough.

Fig 2 both of chamber rearward'ly of said'reflecting case in i a t l he top plate a is adapted toreceive a plurality of refractory elements known i111 the'artas radiants,-indicated in dotted lines at 6," since such elements are considered merely as being articles used-in the heater as distinguished from a part offthe heater itself, and their showingiin't'ull lines would tendhto obscure other essential character.

istics of theinventiona a V v a While the reflecting casing a; as, a matter oi convenience is drawn or spuntov form a circular, dished reflector, I provide a substantially horizontally extending reflecting:

elementf in a position forwardly of and adjacent the top plate 0 sothat light rays projected thereonto trom the elements a will not only afl'oi'cla brilliant'surtace presented to those observing the heater from above but will also reflectsuch rays against other portionsot the reflecting CitS1I1g, 21I1Cl receive and reflect rays from some portion of the reflecting casing, thus securing brilliancy throughout the entire reflecting casing a-'f.

Preferably this element is provided with transverse'corrugat1ons,.as shown, as to the.

rally extending bars k a top barkand reflecting surface thereof, the" portion f o this element closing the lower portion of the reflecting caSing a and serving merely to nnprove the finish of the heater. 1

The side edges o't'the reflectoradjacent the opening a are turned rearwardly as shown at a n Fig. 2 to form side supports for the housing'b, this housing belngengageclat the top thereof by' a flexible metallic member g so .as to hold said housing 7) firmly in relation to the top plate 0. Rear-wardly rot thereflecting casing a, a member 0 forming a flue rearwardly oi, about and above the combustion chamber formed by the housing 5, thetop ot'said chamber opening into-thisflue. Said flueforming means discharges. horizontally above the casing a, the discharge opening "thereof; being provided with, a decorated shield/L. Adjacent the bottom of said. fluetorniiing meansare openings 7& which are also adgacent therbottom of the combustion chamber so that the opposite ends of said elements a.

i rioaao flue-forming member hrcommunicates respectively with atmosphere adyacent the lower part *ofi and above said' combustion chamber.

The member it has attached thereto a handie by means of which the heater in its entirety may be readily transported from place to place, there being provided a brace "2' within the this and secured to the back wall of the flue-forming means it and to the reflecting casing a so as to brace the upper part of said structure adjacent: said handle, said brace havlng an opening z? thereuninterrupted convection movement of heated air and gases through the flue and their discharge into a room.

The burner cl includes therein a casing 'l'ornnng a mixing chamber d supplemental air tubes (Z passing through said chamber and opening above and below same, nipples (Z extending about the upper end, of said tubes v and rorming therewith a circular lnirner opening beloweach refractory ele-- through of suflicient capacity to ensure an y secured thereto the. openings if being formed in said top plate rearwardly of the refractory housing 2').

lVhile, as a matter of convenience in handling, the pedestal j and its base 7'' are made of hollow stock, this is considered immaterial to the invention. 7

v Protecting the opening in the reflecting casing a above the reflecting element 7 is a wire shield 70 having a bottom bar Z4, Vertihorizontal bars k saidshield being so termed parel corningyin contact with the radiant The bottom bar Z? has laterally extended eudsm, which 1nojectithrough openings pierced in the wall of the reflecting casing a adjacent the: member f so as topermit said shield to swing downwardly as indi; cated in dotted linesin Fig. 2 and thus per mit unobstructed access to the burner open ings tor the purpose'ot lighting the heater.

as to normally prevent wearing ap- A the ot the vertically extending bars L eX- tends substantially radially ot'the reflecting ca a, and while secured to each of the horizontal bars 70 and to the bottom 72, is

notconnected in any way with-the top bar .75, thelrec en'd'ot said bar extending upwardly to form a latch member n'adapted to enter a suitablepierced opening at the edgeot the casingc, said edge being provided with a guide slot 71 to facilitate a con- 'venient engagement and disengagement of said latch member with the socket formed by the pierced opening in said casing.

The operation of the herein described heater is substantially as follows:

The burner (Z operates in the usual mannor in producing a long blue flame within the refractory elements or radiants e, bringing said elements to incandescence, the degree of incandescence of different portions thereof constantlyirvarying with the circulation of air in relation thereto.

Some of the intense heat developed by and aboutsaid elements is absorbed by the housing Z1 so that this housing reaches a high temperature, although it is no factor in the light effects secured with the heater. The heated products of combustion pass upwardly through the opentop of said housing, entering the fine formed by the member 7: and together withthe heated air admitted through the openings k flow by convection through the openings in the shield 7t and are projected into a room horizontally so as to more or less diffuse the heated air by reason of its horizontal projection into a room.

The upfiow of the products of combustion in addition to increasing the circulation of air through the flue it, will also induce a movement of air from the front of the housing Z) through the combustion chamber,

thus increasing the effective supply of secondary air ensuring perfect'combustion of the gases within and about the refractory elements and avoiding the presence of noxious fumes discharged from the flue into the room.

Theair entering the flue through the openings it is heated by contact with the housing 7), this stream of air also serving to keep the hack of the heater cool so that it may be readily placed against a wall or in any other position, without increasing the fire hazard or causing likelihood of injury to articles in or the wall of, a room.

The light and heat rays emanating from the elements c will in part be directed againstthe polished surface of the reflecting casing c and of the reflecting element f, some of these rays being projected directly into a room while others thereof will be reiifii'tttl against different portionsof the cas- 7 lug and said element, thus causing a distribution of the lighting effect throughout the entire ref'h-xcting casing including said element. i

The element f has the particular advantage that practically the entire surface thereof is within the range of the refrac tory elementsor radiants. 6, but is upon a plane which will reflect the rays of light upwardly and slightly inwardly of the re fleeting casing it, thus securingan effective distribution of such light rays throughout the entire surface of said casing.

The brace z" and clip o are of dimensions to present no substantial obstruction in the fine formed by the member h, and are merely structural characteristics to impart greater rigidity to the heater structure,

The shield 72 being positioned wellin advance of the combustion chamber, will prevent inflammable matter coming in contact with the radiant elements 6, but make it somewhat difficult to light the burner. B hinging said shield in the manner describec, however, and providing a latch member in formed integrally with one of the wire bars k? which is not connected with the top bar if of thisshield, this shield may be firmly secured to or disengaged from said casing a at all times by reason of the resiliency of the bar k carrying said-latch member and its engagement with the opening in said casing. This affords a very simple and convenient means permitting free access to the burner, the notch n greatly facilitating the engagement and disengagement of said latch with its keeper opening in the casing a.

The use of the reflecting element f is of primary importance since the top plate 0 of the burner will prevent the light rays from the more highly incandescent parts of the elements 6 being directed against the lower portion of the reflecting casing o, if the element 7 be omitted, and the arrangement of this element as shown" will t bring its polishedsurface 111 direct range of the light and heat waves from the lower portion of the elements 0, which is their most highly incandescent portion.

It is not my intention to limitlthe invention to the precise details of construction shown in the accompanying drawings, it being apparent that such may be varied without departingfrom theaspirit and scope of the invention. a

l-laving described the invention, what I;

claim as new and desire to have protected 7 by Letters Patent, is:-

l. A heaterembo a substantially horizontal,reflecting eleing adapted to receive refractory heating elements, a heating unit in said combustion dying therein a front- L reflecting casing having an opening therein,

115 nientqwithin said casing and extending across the opening therein adjacent the bot chamber, and means forming a fine rearwardly of said combustion chamber, the opposite ends of which communicate respectivelvivithatmosphere adjacent the lower part of andabove said combustion chamb"" whereby convection movement of 311 7 j j 1s set up about said combustion chamber,

andair so heatedisdelivered to a room.

21A" heater embodying therein a front reflecting easin having an opening therein, a substantially horizontal,- reiiecting element within said casing and extending 'acrossthe opening therein adjacent thebot- 'toin thereoflfwhereby said reflecting element will receive light rz'i-ys and project, them againt other portions of therefiectmg surface of'said'casing, and also present a brilliant surface to the observer, an open topped hcusingforming a combustion chamber at saidiopening' adapted to receive refractory heating elements, a 'heatingunit in .said combi'i'stion chamber, and means forming a flue'rearwardly of said'combustion chamber,

extending acrossand connnunicating with said"comlmstionchamber through the open top of said housing; the opposite ends or whichcommunicate respectively with atmos phere ad acent thelower: part of and above saidcombustion chamber, whereby convecfle ctin casin havin an 0 aenin therein.

b 2: b b r tion movement of air is set up about said combustion chamber, and air so heated is delivered. to a room. a

BL'Aheaterembodying therein a front re a' Substantially horizontal, reflecting-- element'ivithin said casing and extending across the opening therein adjacent the bottom thereof, whereby said reflecting element will receive light rays and project them against ether ermanent the reflecting surface of said casing, and also present abrilliant sur face to the'observer, means forming acoin' ,bustion chamber at sald opening,

saidjcombustion chamberand adapted to receive refractory" elements exposed through" theopening iu said reflecting casing, and on substantially the plane of said reflecting element, and means forming a flue'rear- Wafdly' of said combustion chamber, the opposite ends of which communicate respectivelyivy th"atmosphere adjacent the lower partfofand above said combustion chamber.

whereby, eonvection'movement of air is set upfabout Fiftld combustion chamber, and air sohe ted is delivered tea room.

l i 'iij heaterembodying therein a front,

reffl ing casing having an o aen'ing therein. a "substantially horizontal, reflecting element Within"saidfcasing and extending across the ojfning therein adjacent the bottom thereof, whereby said reflecting element will receive light rays and project jthe'm against other 3ortionsj"of"the reflectingsurface of said casing, and also present a brilliant surface to the' obse'rver, an'open topped housing formmg'acombusncn chamberat said opening,

y r a burner having at-Op plateformingthe bottom of a bnriierh'a'vinga top" plate-forming the bot tom of'sai'dcombustion chamber andadapted to receive refra-ctory elements-exposed through the openingin said reflecting casing, and "on" substantially thep'l'ane 'o'fsa'id reflecting element, and" means forminga flue reaii'vardly of said combustion chambet: extendingacrossand communicating with. said combustion chamber through the open top of said housing; theopposite ends of WlllCll communicate respectively with atmosphereadjacentsthe lower part of and above'said combustion chamber, Wherelciy 'con'vection -movementfof air is set; up 7 about 'said combnstionfchamber, and air 'so heatedis delivered to a room.

5. r ahea'ter embodying therein a fleeting casing having an opening therein, a substantially horizontal, reflecting element Within said cai'singan'd extending'acrossthe opening therein adjacent the bottom thereof,

whereby' saicl'reflecting element will receive front relight rays and projectthenrr against other portions of the reflecting-surface of said casing, and also present a b'rilhant surface to the observer, an open to ped-h0using of clip being of insufficient width 'to materially obstruct'said flue.

. 6: A heater embodyingtherein a front reflecting casing having an opening; therein, a substantially horizontal, reflecting" element within'said casing and extending across the opening therein adjacent the bottom thereof, whereby said reflecting element will receive light rays and project them against other-portions of the reflecting surface of said casing, and also present a brilliant sur face to the observer, means forming; a combnstion' chamber at said opening adapted to.

receive refractoryheating elements, a heating unit in said combustion chamber, means forming a flue rearwardly of saidcombustion' chamber, the: opposite ends of which communicate respectively with atmosphere adjacent the"lovver part of and above said combustion chamber," whereby convection nioveiiientof air'is set up about said combustion chamber, and air so heated is deliv ered to a room, a shield having a bottom WlIQ provided W1th lateral extensions adapted to enter openings in said reflecting casing adjacent said reflecting element a top 5 bar and cross bars including a vertically extending bar having the free end thereof extending upwardly to form a latch member adapted to enter an opening in said casing, said vertical bar being unconnected with 10 said top bar, whereby it may be flexed to permit its engagement; with and disengagement from said opening in said casing.

In Witness whereof I have hereunto affixed my signature, in the presence of two subscribing Witnesses, this 3d day of November, 15

. AARON H. WOLF F. lVitnesses F. T. lVnNTWoR'rH, FRIEDA KOEHLER. 

